The NSW Greens have called on Shoalhaven City Council to halt plans to remove trees on Gerroa Road as "the battle of the bum tree" continues.

NSW Greens environment spokeswoman Dr Mehreen Faruqi said the removal of the 140 trees, some of which are hundreds of years old including the landmark "bum tree" would be a devastating blow to wildlife that relied on the trees for connectivity and habitat.

"Local residents have raised deep concerns about the lack of community consultation as well as the lack of environmental and scientific rigour of the reports underlying the council's decision," Dr Faruqi said.

The end could be near for the "bum tree", the well-known landmark on Gerroa Road on the boundary between Kiama and Shoalhaven councils.

The tree is on the western edge of the road just north of the Beach Road intersection opposite the Seven Mile Beach State Park.

The tree has a couple of prominent bulges that protrude from the trunk, with the letters BUM and an arrow pointing to the bulges regularly repainted on the tree.

Who paints the words is a mystery. In the past, some holidaymakers have claimed responsibility, while there have also been published reports the tree represented a border between the areas of different Aboriginal groups on the South Coast.